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Knapp Mica Prospect

Past Producer in Hartford county in Connecticut, United States with commodities Mica, Feldspar
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10068072
MRDS ID W000996
Record type Site
Current site name Knapp Mica Prospect
Related records 10143162

Geographic coordinates

Geographic coordinates: -72.93814, 41.87026 (WGS84)

Site location context

Political divisions (FIPS codes)

Hartford(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Collinsville(quadrangle 1:24,000 scale)

Hartford(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Farmington River(hydrologic unit)

Lower Connecticut(hydrologic accounting unit)

Connecticut(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Hartford

Commodities

Commodity Importance
Mica Primary
Feldspar Secondary

Comments on the commodity information

  • OWNED BY EDWARD C. KNAPP AND PROSPECTED BY ROBERT BRISTOL FOR MICA IN 1944. PROSPECT TRENCH 65 FEET LONG, 25 FEET WIDE, 4 FEET DEEP ON PEGMATITE AT LEAST 280 FEET LONG AND CONSIDERATELY MORE THAN 8 FEET THICK; AT SW. END OF PROSPECT, CONTACT OF PEGMATITE WITH WALLROCK STRIKE N. 70 DEG. EAST AND DIP 20 DEG. SE.; AT NE. END OF PROSPECT, WALLROCK CONTACT STRIKE N. 25 DEG. EAST AND DIP ABOUT 20 DEG. SE.

Materials information

Materials Type of material
Muscovite Ore
Plagioclase Ore
Quartz Ore
Garnet Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -72.93814, 41.87026
ListMap

Economic information

Ore body information

  • Thickness 2.44M
    Length 85.34M

Controls for ore emplacement

  • Pegmatite Dike

Comments on the geologic information

  • GEOL.DESC: PARTLY ERODED DOME-SHAPED PEGMATITE SHEET IN MEDIUM-GRAINED GARNET-RICH QUARTZ-MUSCOVITE HARTLAND SCHIST. GEOCHRON AGE OF PEGMATITE AT BRANCHVILLE, ALSO IN HARTLAND FORMATION, IS 368 M. Y. FOR DEVONIAN AGE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Mining district

District name Canton

Ownership information

  • Type Operator
    Owner Robert Bristol (Prospector)
  • Type Owner
    Owner Edward C. Knapp

Comments on the production information

  • SMALL OUTCROPS OF LOW GRADE MICA PEGMATITE.

Comments on the reserve resource information

  • SMALL PARTIALLY ERODED NEAR FLAT-LYING PEGMATITE SHEET REMNANTS.

Workings at the site

  • Type of workings Unknown
    Overall length 19.81M
    Overall width 7.62M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CAMERON, E. N., 1954, "PEGMATITE INVEST. 1942-45, NEW ENGLAND", USGS, PP. 255, TEXT, PG. 302, 303

  • Production

    CAMERON, 1954

General comments

Subject category Comment text
Deposit CAMERON SHOWS MINE MAP PAGE 303; UNPUB. REPORT IN USGS FILES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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